Mega cli install

Installing LSI megaCLI in Ubuntu

In order to setup the LSI megaraid megacli command line utility for managing hardware raid arrays under
Ubuntu requires a few steps


First you will need to modify your sources.list to include another repo whereby the tools can be downloaded
using apt-get

Modify /etc/apt/sources.list

and then add

"deb http://hwraid.le-vert.net/ubuntu precise main"


then do

Code:

apt-get update


apt-get install megacli megactl megaraid-status

If you get a GPG error, you will need to grab the keys

Code:

wget -O - http://hwraid.le-vert.net/debian/hwraid.le-vert.net.gpg.key | sudo apt-key add -

Then try again

Code:

apt-get install megacli megactl megaraid-status

Some basic megacli commands:

View information about virtual drive

Code:

megacli -LDInfo -Lall -aALL

View information about physical disks

Code:

megacli -PDList -aALL

Using smartmontools behind the raid controller:

You can test individual drives behind the raid controller with a bit of trickery. Smartmontools is great for diagnosing individual hard disk drives if you are concerned about the health of your raid array.

First you need to get a list of the device ids for each of the individual
drives:

Code:

root@server:~# megacli -pdlist -a0| grep 'Device Id'
Device Id: 9
Device Id: 10
Device Id: 11
Device Id: 8

In my example, I have a raid array with 4 disks, listed here as devices
8 through to 11, and the mounted device is /dev/sdc


We can manipulate the smartmontools commands in order to test these individual devices.

Code:

smartctl -d sat+megaraid,8 -t short /dev/sdc

this will perform a 'short test' on /dev/sdc's raid device drive no. 8

in order to view the status of the short test you can use

Code:

smartctl -d sat+megaraid,8 -l selftest /dev/sdc

this procedure can then be done for each other individual device id behind the raid array.